function s1_hello(){
echo"Hello,world"
}
function s2_tell_who_I_am(){
echo"who am I"
}
function s3_which_distro_do_I_use(){
grep'^NAME='/ect/*-release | awk -F '{print"name=\""$2"\""}'
}
function s4_view_my_cpu_arch(){
uname -m
}
function s5_show_firdt_scsi_disk_size(){
lsblk -l | grep disk | gerp'^sda' awk '{print $4}'
}
function s6_shoe_mian_memory_size_megabytes(){
free -m | grep "Mem:" | awk'{print $2}'
}

s1_hello
s2_tell_who_am_I
s3_which_distro_do_I_use
s4_view_my_cpu_arch
s5_show_first_scsi_scsi_disk_size
s6_show_main_memory_size_in_megabytes

